Operating Systems General Concepts Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Operating Systems General Concepts Interview Questions

Questions Answers Views Company eMail

What is Difference between thread and process?

AirTies, Azingo, Bloomberg, Encora, Goldman Sachs, HCL, HP, MES, Microsoft, Samsung,

28 269190

How to communicate between difference process?

HP, IBM,

2 11778

What is the best way of communication in multi process environment? ex: getting log from different applications from multi servers?

HP,

1 4936

What is scheduling and How it effects the processor efficiency?

HP,

2 5903

What is virtual memory, if OS didt have that concept What are the problems can arise?

HP,

6 17021

What is the best suited algorithm to avoid internal fragmentation?

HP,

2 9977

How to escape from external fragmentation?

HP,

2 6036

What is difference in managing processes in windows, unix, RTOS?

HP,

2856

What is the difference between mutex and semaphore?

HP, Microsoft,

14 62057

What are counting semaphores?

HP, IBM,

4 17404

which is best among semaphores and mutexes?

HP,

2 7803

which is best among pipes, queues, shared memory and why?

HP,

2 7291

What are named pipes?

HP,

3 7245

What is the signal?

HP,

1 5771

What is the highest priority software interrupt?

HP,

1 6172

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Un-Answered Questions { Operating Systems General Concepts }

What is the difference between a file and a directory?

1100

How does a ram function?

1078

What are short-term, long-term and medium-term scheduling?

1072

How do I clean up program files?

1101

How do I enable macros?

987

Is 64gb ram enough for gaming?

1007

Throw some light on internal process memory.

1036

How many types of file systems are there?

1023

What is basic concept of operating system?

989

How do I get to the root directory?

1044

How do I find the location of an excel file?

1044

Why partitioning and formatting is a prerequisite to installing an operating system?

1599

What is deadlock? Explain.

1089

Mention the steps involved in the execution of a program.

964

How long does chkdsk f'r take?

1080

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